The Thermal Efficiency of a Heat Engine Is Given by $e = \frac { W _ { a g } } { \left| Q _ { h } \right| }$

question 48

Multiple Choice

The thermal efficiency of a heat engine is given by

• A) \(e = \frac { W _ { a g } } { \left| Q _ { h } \right| }\) .
• B) \(e = \frac { \left| Q _ { h } \right| - \left| Q _ { c } \right| } { \left| Q _ { h } \right| }\) .
• C) \(e = 1 - \frac { T _ { h } } { T _ { c } }\) .
• D)all of the formulas above.
• E)only (a)or (b)above.

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Definitions:

Compounded Annually

An interest calculation method where the interest earned each year is added to the principal, and the following year's interest is based on this new principal amount.

Simple Interest

Interest determined purely on the original amount borrowed, or on the unpaid portion of that initial amount.

Special Account

An account designated for a particular purpose or offering special conditions or privileges.

Compounded Monthly

A method of calculating interest where the interest earned each month is added to the principal, so the investment grows at an increasing rate.